No, that stone in today"s homepage image didn"t get there by itself. Or did it? Not only is Death Valley one of the hottest places on Earth, it also boasts a mysterious geologic phenomenon—rocks that drift across the exceptionally flat desert floor, seemingly under their own power. The rocks here at Death Valley"s Racetrack Playa are known as "sailing stones" and they can vary in size from a few ounces to hundreds of pounds. As seen in our image, the stones leave long trails behind them as they move across the scenic dry lakebed.
Rocks on the move
Today in History
More Desktop Wallpapers:
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Peña Roya beech forest, Moncayo Natural Park, Aragon, Spain
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National Park Week: Everglades National Park
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The desert blooms
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Welcome to the Year of the Pig
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Christmas comes to New York City
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Lupine fields, Snæfellsnes, Iceland
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World Bicycle Day
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In Texas, even the riverbend is big
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Marseille welcomes the Olympic torch
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International Day of Human Space Flight
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The first ascent
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Ringing in the new year at Teotihuacan
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Pups of the prairie
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Great Fountain Geyser, Yellowstone National Park, Wyoming
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Hiking the High Trestle Trail
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Take the Stairs Day
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Celebrating Yi Peng
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Katahdin Woods and Waters National Monument anniversary
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Discovery Day in Yukon, Canada
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World Dolphin Day
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Go Fly a Kite Day
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A little blue
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Whatever floats your boat
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Arches National Park, Utah
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Beech trees and wild anemones, Jutland, Denmark
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New York City Marathon
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National Park Week begins
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World Elephant Day
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Feeling crabby?
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Fall color sweeps across the West
Bing Wallpaper Gallery

